The pseudo assembly listing consists of the machine instructions and a translation of these instructions into a form that resembles assembler code. This listing always starts with a small section of non-executable data that records the date and time when the object was produced as well as the version of the compiler used to produce the object. This section ends with a service string which in the listing is followed by the build date for the compiler back-end that generated this part of the listing (and this date may be different from the build date for the compiler front-end that generated the first pages of the listing).